The Initial Conditions for Star Formation in Clusters: Temperature

Details The Initial Conditions for Star Formation in Clusters: Temperature The Initial Conditions for Star Formation in Clusters: Temperature

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atnf.prop.3440b&link_type=abstract

ATNF proposal P776, Semester: October, 2010

Astronomy and Astrophysics

Astrophysics

Star Formation, Parkes

Scientific paper

A fundamental problem in astrophysics is how do stars form in clusters of 100 or more, in a region of size 1 pc, in a time of 1 Myr, with a mass distribution following the IMF. Stars form within dense gas cores, and recent work suggests the initial conditions provided by those cores are a key to the problem. We have recently mapped the distribution of dense gas in 5 nearby cluster forming regions via N2H+ 1-0 observations with Mopra, to determine their physical state. Here we propose to measure the kinetic temperature of the cores identified in the N2H+ map, through mapping observations of the (1,1) and (2,2) lines of ammonia, to determine whether thermal or non-thermal motions dominate, and whether they are bound and so likely to form new stars.

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